1. Find all the critical points for the following function. Classify each critical point as a relative minimum, relative maximum, or saddle point. f(x,y) = x3 + 12x y3 + 27y + 3 Page 2 of 9 2. Find all the critical points for the following function. Classify each critical point as a relative minimum, relative maximum, or saddle point. 16 25 f